X300 vs. X400 Height Difference

[peruna]

I can't find the specs regarding height anywhere for the X300 Ultra and the X400 Ultra.

I am running my light at 12:00 on a Daniel Defense RIS II with a FSB and just wondered if the X400 will block the FSB.

[goteron]

Yes it will. Let me see if I have a Graphic for it.

[peruna]

I thought it might.

Thank you for the information!